| Value | Category | Cases | |
|---|---|---|---|
| 1 | First quartile | 1126 |
24.8%
|
| 2 | Second quartile | 1560 |
34.3%
|
| 3 | Third quartile | 913 |
20.1%
|
| 4 | Fourth quartile | 745 |
16.4%
|
| 5 | Don't know | 164 |
3.6%
|
| 6 | Refused | 41 |
0.9%
|